While Sega and Paramount Pictures have been working on Sonic the Hedgehog 4 – slated for a theatrical release in 2027 – the companies have also seemingly been working on yet another film in the franchise. This time around, however, it seems to be an “event film”. According to Variety, Paramount has added untitled movies to its release calendar. One of these is going to be based on Teenage Mutant Ninja Turtles, while the second one has been described as a new “Sonic Universe Event Film”.
As for any concrete details, Paramount has been quiet about what we can expect from this event film. Even its title has been kept under wraps, since it wasn’t officially referred to as a new entry in the Sonic the Hedgehog series. The fact that it will be an event film in the Sonic Universe, however, also implies that it might end up being a much grander outing than what we’ve seen so far.
This secrecy has ultimately led to fan speculation about what the movie could be about. Considering the successful appearance of Shadow the Hedgehog in Sonic the Hedgehog 3, however, many fans are considering the possibility that this new event film might be a full-on standalone release featuring Shadow as played by Keanu Reeves. This would also open up the possibility for Sega and Paramount to bring in some of the side characters that are more closely associated with Shadow rather than Sonic, like Rouge the Bat, for example.
As for the other untitled project, once again, Paramount hasn’t quite revealed what we can expect from this Teenage Mutant Ninja Turtles movie. The company has, however, confirmed that it will be helmed by Neal H. Moritz, who has been credited as being the brains behind the Sonic the Hedgehog movies so far. The movie is set to make use of a combination of live action and CG animation footage, much like Sonic the Hedgehog, and will feature the four eponymous Ninja Turtles – Leonardo, Donatello, Raphael and Michelangelo.
The fourth movie in the Sonic the Hedgehog movie franchise was announced as coming to theatres on March 19, 2027. At the time, it was the only film slated for release on that day as per Paramount’s plans. While no real details about it have been confirmed so far either, the main cast is largely expected to return to reprise their roles, including Ben Schwartz once more playing Sonic.
The Sonic the Hedgehog movie series has proven to be incredibly successful, with Paramount confirming back in January that the trilogy had crossed the $1 billion mark in the worldwide box office. The first movie was released all the way back in 2020, with its sequel getting released in 2022. The first two films alone had accounted for $725.2 million in the worldwide box office. The third movie, released in December 2024, had let the franchise hit the $1 billion milestone by making $312 million in the worldwide box office.
For more details about the movie series, check out the Sonic the Hedgehog 3 movie pack DLC that was released for Sonic X Shadow Generations back in December 2024.


